3125215 has 16 divisors (see below), whose sum is σ = 4014720. Its totient is φ = 2328480.

The previous prime is 3125209. The next prime is 3125219. The reversal of 3125215 is 5125213.

It is not a de Polignac number, because 3125215 - 2⁵ = 3125183 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 3125192 and 3125201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3125219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6120 + ... + 6610.

It is an arithmetic number, because the mean of its divisors is an integer number (250920).

Almost surely, 2^3125215 is an apocalyptic number.

3125215 is a deficient number, since it is larger than the sum of its proper divisors (889505).

3125215 is a wasteful number, since it uses less digits than its factorization.

3125215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582.

The product of its digits is 300, while the sum is 19.

The square root of 3125215 is about 1767.8277631036. The cubic root of 3125215 is about 146.2042397074.

The spelling of 3125215 in words is "three million, one hundred twenty-five thousand, two hundred fifteen".